'Son in law' in the Bible

Then the Philistines said, Who has done this? And they answered, Samson, the son-in-law of the Timnite, because he had taken his wife, and given her to his companion. And the Philistines came up, and burnt her and her father with fire.

And it came to pass on the fourth day, when they arose early in the morning, that he rose up to depart: and the young woman's father said unto his son-in-law, Refresh your heart with a morsel of bread, and afterward go your way.